You can connect any self-custodial Bitcoin setup you want as a source/destination for our tools. So yes, ultimately we connect Bitcoin that you hold yourself with the rest of the world. 1. Wavecard product works via @2dd140ca…7596051a , pulling sats from NWC enabled Lightning wallet. 2. LINK product links any onchain address with an IBAN, so that BTC automatically lands in your chosen self-custody. 3. Selling Bitcoin also works from any source: onchain, LN, NWC.